I don't get to understand why IBS seem by many as the diagnostic to avoid. I have seen (and I am not pointing fingers to anyone) in this forum more than once individuals presenting their case as Crohn's was a better diagnosis than no diagnosis. I personally would gladly give my Crohn's if I could to anyone who wants it in exchange with their IBS. This does not mean IBS is not grave or anything, I feel for anyone who has a problem. At least with IBS you avoid surgeries, you avoid the chronic anemia, the heavy medication, the severe weight loss, the blocages, colorectal cancer risk 30% after 30 years with colon involvment, the reduced life expectancy, etc, etc and etc... There is a reason why GIs don't give the diagnosis easily, it's a serious diagnosis not to be taken lightly, a lifelong sentence.
There are possible treatments for IBS for those who accept the diagnosis.
Boom, don't take it wrong, but being in a bad flare reading this statment of yours was hurtful: ''I am upset because at least if it was/is IBD, there are more treatment options to try.'' Really?! I'd take IBS treatments over prednisone, immunomodulators and biologics and surgery ANYTIME.
Personally, you should pray and wish it is IBS or at least that it is not IBD. You should pray that your colonoscopy comes with no sign of IBD. Because sure as hell, that's what I would have done in your place.
Just to add, I am not heartless and do understand the pain of those who have severe abdominal symptoms with normal test results.